20659240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73783}}^1$

素因数の和:73801

約数の個数: 32

約数和(自身を含む): 53124480

約数和(自身を除く): 32465240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 73783, 147566, 295132, 368915, 516481, 590264, 737830, 1032962, 1475660, 2065924, 2582405, 2951320, 4131848, 5164810, 10329620, 20659240]

約数ペア:

[(1, 20659240), (2, 10329620), (4, 5164810), (5, 4131848), (7, 2951320), (8, 2582405), (10, 2065924), (14, 1475660), (20, 1032962), (28, 737830), (35, 590264), (40, 516481), (56, 368915), (70, 295132), (140, 147566), (280, 73783)]